White label xb 11sr megaphone 330mm amplifying recording white label 305305 p this xb 11sr megaphone 330mm is a low cost speaker system that can be used for amplifying and recording announcements and plays back a tune during meetings demonstrations and sporting events lightweight yet manufactured with robust abs plastic housing the xb 11sr megaphone has several excellent features and comes supplied with foldaway hand grip and shoulder belt p white label 305305 xb 11sr megaphone 330m